Photographic-printing machine.



W. W. WONNER & C. W. SIMON.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED APR. 9, I915.

Patented J an. 9, 1917.

UNITED STATES PATENT OFFICE.

WILLIAM w. woimnn AND CHARLES w. smon, or ronx, rnmrsrnvanm; sun

PHOTOGRAPHIC-PRIN TIN G MACHINE. I

Specification of Letters Patent.

womr. assrcnon T0 NOAH c. scanner, or RED LION BOROUGH, rmmsynanm Patented Jan. 9, 1917.

Application filed April 9, E15. Serial No. 20,289.

To all whom it may concern:

Be it known that we, WILLIAM W. WON- NER and CHARLES W. SIMON, citizens of the United States, residing at York, in the county of York and State of Pennsylvania, have invented new and useful Improvements in Photographic-Printing Machines, of which the followmg is a specification.

' The invention relates to photography, and more particularly to the class of photographic printing machines.

The primary object of the invention is the provision of a machine of this character wherein the frame for printing is of novel construction so as to position-the negative on the printing paper together with the usual mask whereby the light acting upon the negative on the paper will bring about the desired printing.

Another object of the invention is the provision of a machine of this character wherein thg frame carries a transparent plate and means for holding a mask against said plate and also holding a film, the holding means being independently operated for both the film and mask for the successful working of the machine.

-mentary plan A further object of the invention is the provision of a machine of this character which is simple in construction, thoroughly reliable and efiicient in its purpose, strong, durable and inexpensive in manufacture.

Other objects will be in part obvious and part hereinafter set forth.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter described, and the scope of the application of which will be indicated in the appended claims.

In the'accompanying drawings, Figure 1 is a top plan view of a photo aph printing machine constructed in accor ance with the invention; Fig. 2 is a fragmentary vertical longitudinal sectional view thereof; and Fig. 3 is a ing the backing raised. Fig. t is a fragview of the top of the box showing the holding members. Fig. 5 is a detail perspective view of the Similar reference characters indicate cor- :responding parts throughout the several views of the drawings.

fragmentary side elevation show'-- rod for the Itefierring to the drawings in detail, 10

designates generally a portion of a box which is adapted to be closed on all sides and has an inclined top ll which is suitably hinged at the back of the box and secured by spring-like catches 12 at the front, sald top projecting upwardly andrear- Wardly with a depressed opening 13 closed by a transparent member or glass 14 carried by the top. The box 10 is adapted to contain suitable artificial light for the printing operation for the production of photographic prints.

Secured to the cover or topll and extending into the depressed opening 18 to lie against the face of the glass 14 are a series of spring-like holding members 15 and 16 respectively which are adapted to hold the usual film or negative 17 and mask 18 against relative movement. J ournaled to rotate in the top 11 is a horizontal rod 19 terminating in a lateral handle 20 with transverse pins 21 secured in and passing through said rod, said pins operating against the under side of the spring-like holding members 15 and 16 so that when the handle of the rod is thrown into one position, the pins engagin' the holding members will raise the same the film and mask can be arranged in position upon the glass, after which the handle 20, being. turned to move the pins out. of engagement with the spring-like holding members 15 and 16, said Holding members returning to normal position will bear against the edges of the film and mask and secure the same against relative movement rom the glass so that j Mounted to swing upon the top 11 by means of suitable spring-like hinges 22 is a backing 23, preferably consisting of two hingedly connected sections 24 and 25 respectively, said backing being adapted to bear against the printingpaperand hold the same fiat against the mask and filmj The backing fits into the opening 13 in the top ll'to bear against the glass 14 and mounted to swing upon the top is a presser member '26 which exerts a. pressure against. the backing and locks the same in closed position. The presser member consists, more particularl of a bar 27 terminating at its forward end in a forwardly projecting handle-which is pivoted on a orizontal pintle 28' and on which is also pivoted a U-shaped spring 29 connecting at its bent portion with the under side of the bar 27 by means of a securing member 30 carried by the said bar. Inclined supports 31 secured to the under side of the bar 27 connect with the'spring 29 and the spring passes through loop members 32 secured to the front end of the section 25 of the backing 23 so that the spring acts as a guide and upon the upward swinging of the bar will cause the section 25 to pivot upon the sec tion 2 1 and have its front end swing along the spring to fold out ofand away from the opening in the top, the swinging of the section 25 upon the section 24 being limited by the inclined supports 31,

I Vertically disposed cross plates 33are secured to the upper sides of the sections 24: and 25 of the backing and are provided with grooves 34 into which the spring 29 is adapted to fit when the backing is arranged in closed position and the presser member presses downwardly to exert a pressure against the backing. A springactuated finger-lock 35 is arranged upon the bar 27 near its front end and is adapted to engage the under side of a plate 36 secured around an opening 87 in the top, said finger lock holding the presser member against movement with respect to the top, whereby the desired pressure will be exerted against the sections of the backing due to the fact that the spring 29 bears against the cross plates 33, said spring being connected with and having pressure brought upon it by the bar 27, as will be obvious. As soon as the finger lock 35 'is released it will be seen that' the pressure member, together with the backing, will quickly spring upwardly due to the tension of the spring 29 and by the backward movement of the bar it carries the sections of the backing with it, thus permitting the operator to have access to the film, mask and printing paper which has been previously held flat against the glass 14 by the sections of the backing, it

being of course understood that the holding.

members must first be released before the film, mask and printing paper can be removed from the glass.

It will beparticularly noted that there are preferably three of the spring-like holding members employed to secure the film and mask, two of the spring-like holding members, namely, those indicated by the numeral 15, being adapted to bear against the mask to secure the-same against movement, while the third or intermediate spring-like meniber 16 projects slightly beyond the holding members 15 'to bear against the. film. It

will also be noted that the pins 21. which operate the holding members 15. project from one side of the periphery of the rod 19, while the transverse pin 21 which operates the holding member 16 passes diametrically through the rod to have both ends projecting from the rod. 'Now when the handle 20 is swung backwardly the holding members 15 and 16 will be simultaneously raised to permit of inserting the mask be-' neath the holding members and when the handle is swung forwardly the holding members will bear down upon the mask.

the handle is again operated to move the pin of-the holding member 16 out of engagement with its under side so that the holding member 16 will bear against the film and hold it in place.

It will be obvious that a plurality of bold ing members secure the mask and the single holding member secures the film, the printing paper being then placed upon the top of the film and after being arranged in position is held by the backing consisting of the two hingedly connected sections 2.4 and 25, one of said sections first bearing against the vupper portion of the printing paper, with the lower section of the backing adapted to cover the remainder of the printing paper when the presser member is swung downwardly into its locked position.

By having the sections 24: and 25 relatively hinged it will be apparent that the section 25'can be swung upwardly and away from the printing paper so that the operator can raise the printing paper and see whether it has been exposed a suifi'cient time without destroying the relation of the printing paper and film, which are still maintained in their proper relation by the section 24 and also the holding members 15 and 16.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the herein described photographic printing machine will be readily apparent and, therefore, a more extended explanation has been omitted.

Having thus described our invention, we claim: 7

1. In a photographic printing frame, a transparent plate, a holding member for holding a mask against said transparent plate, a holding member for holding a film against said transparent plate and said mask and means for alternately simultaneously or' independently member. I

2. In a photographic printing frame, a transparent plate, a holding member for operatingv said 'holding holding a mask against said transparent plate, a holdin against said transparent plate, an

for operating 5 members and also operating said film hold g member for holdin a film means the film and mask holding ing member" independently of said mask holding members.

we aflix our sig 0 witnesses.

W. WONNER. W SIMON. 

